“…Most studies were conducted in the United States (Anderson et al, 2015; Arnold & Weir, 1994; Boyle et al, 2017; Irvin et al, 2017; Lam et al, 2018; McGuinness et al, 2012; Padula et al, 2019; Westra et al, 2013), followed by Japan (Kaitani et al, 2015a; Kaitani et al 2015b; Sanada et al, 2010), Korea (Lee, 2017) and Australia (Vu et al, 2007). Settings included hospitals (Anderson et al, 2015; Boyle et al, 2017; Irvin et al, 2017; Kaitani et al, 2015a; Kaitani et al 2015b; Lam et al, 2018; McGuinness et al, 2012; Padula et al, 2019; Sanada et al, 2010), community settings (Irvin et al, 2017; Lee, 2017; Westra et al, 2013) and nursing homes (Arnold & Weir, 1994; Vu et al, 2007). Five studies were retrospective (Arnold & Weir, 1994; Boyle et al, 2017; Irvin et al, 2017; Lee, 2017; Padula et al, 2019), five had a prospective design (Kaitani et al, 2015a; Kaitani et al 2015b; McGuinness et al, 2012; Sanada et al, 2010; Westra et al, 2013), two were quasi‐experimental (Anderson et al, 2015; Lam et al, 2018) and one was a pseudo‐randomised trial (Vu et al, 2007).…”